import launch

import launch_ros


def generate_launch_description():
    """
    产生launch描述
    """
    action_node_turtlesim_node= launch_ros.actions.Node( # 小海龟
        package='turtlesim', # 功能包名字 
        executable='turtlesim_node', # 可执行文件名字
    
    )
    action_node_demo_turtle_control=launch_ros.actions.Node( # 
        package='demo_turtle_control', # 功能包名字 
        executable='turtle_control', # 可执行文件名字
    
    )
    
    action_node_demo_turtle_client=launch_ros.actions.Node( # 
        package='demo_turtle_control', # 功能包名字 
        executable='turtle_client', # 可执行文件名字
    
    )

    return launch.LaunchDescription([
        # actions动作
        action_node_turtlesim_node,
        action_node_demo_turtle_control,
        action_node_demo_turtle_client
    ])